# t-test for independent means

20 students picked randomly for an experimental group to receive instructional program.

30 students chosen as control group do not receive instructional program.

Experimental group mean is 38 with a standard deviation of 3.

The control group has a mean of 35 with an estimated population standard deviation of 5.

Using .05 level what can be concluded?

https://brainmass.com/statistics/students-t-test/t-test-for-dependent-independent-means-184987

#### Solution Summary

Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.

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